Abstract:
PROBLEM TO BE SOLVED: To provide a toner which is invisible when viewed under natural light, but possesses a fluorescent agent as a structural component that renders the toner visible when irradiated with UV light, and to provide a process for producing the toner. SOLUTION: The toner contains an amorphous resin, a crystalline resin, wax, an aggregating agent, and a fluorescent agent that emits light by irradiation with UV rays. By selecting an appropriate fluorescent agent and using an ionic crosslinker to further adjust the gloss level of the toner to match the gloss level of a transfer sheet, invisibility of the toner under visible light can be further enhanced. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a toner which can ensure superior magnetic pigment dispersion and dispersion stability, and maintain magnetic characteristics to avoid interference to melting fixation. SOLUTION: The toner comprises one or two or more binder resins, one or two or more coloring agent as needed, one or two or more waxes as needed, and stabilized magnetic monocrystalline nanoparticles. The absolute value of magnetic anisotropy of the magnetic nanoparticles is 2×10 4 J/m 3 or more. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for embedding information on a substrate by which machine-readable information is embedded an object and the information is restored. SOLUTION: The method for embedding information on a substrate includes a step for converting information to a machine-readable code format, and a step for writing the machine-readable code format on a substrate with at least one fluorescent marking material. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an electrophoretic display device which has solvent resistance and particle stability. SOLUTION: An electrophoretic display medium (30. 31, 32) includes one or more sets of colored particles in a dielectric fluid, wherein at least one of the one or more sets of particles comprises poly((meth)acrylate/hydrophilic monomer) emulsion aggregation polymer particles such as poly(methyl methacrylate/butyl acrylate/beta-carboxyethylacrylate) emulsion aggregation polymer particles. The display medium is included in an electrophoretic display device by including the medium in a multiplicity of individual reservoirs of a display layer 40 or layers that is located between conductive substrates. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an electrophoretic display having improved image stability, a display medium for the electrophoretic display, and a display method of the electrophoretic display. SOLUTION: A display medium for an electrophoretic display device includes a liquid system, at least one thermally reversible gelling agent, and at least one set of particles exhibiting a color. Inclusion of the gelling agent enables an image formed in the display device at an elevated temperature of about or above the melting point of the gelling agent to be fixed in a gel state, e.g., at temperature of about or below a gel point of the gelling agent. The image thus has stability, even in the absence of an applied electrophoretic field. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid crystal element in which the domain size is controlled. SOLUTION: The liquid crystal element contains liquid crystal and a liquid crystal domain stabilizing compound. In addition, the liquid crystal element comprises a liquid crystal composition which can be switched between a strongly scattering state composed of a first plurality of smaller liquid crystal domains which strongly scatter predetermined light and a weakly scattering state composed of a second plurality of larger liquid crystal domains which weakly scatter the predetermined light, and a liquid crystal containment structure defening a space for the liquid crystal composition. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide marking particles utilizing a photochromic material addressable by different wavelengths. SOLUTION: The marking particles contain a chelating agent and a spiropyran material of formula (1) or (2) and are prepared by an emulsion aggregation method.
Abstract:
PROBLEM TO BE SOLVED: To obtain an electrophoretic ink with which two or more colors can be expressed and to provide an electrophoretic ink display. SOLUTION: The electrophoretic ink 22, 23, 24 and 25 comprises a suspending fluid and a plurality of particles comprising a mixture of a chelating agent and a spiropyran material of formula I or formula II (n is an integer representing the number of repeating unit -CH2 -; R is H or CH=CH2 ) suspended in the suspending fluid. The particles are free to migrate within the suspending fluid under the influence of an electric field.
Abstract:
PROBLEM TO BE SOLVED: To develop a new microcapsule and a new microcapsulation technique and enlarge an application field where the microcapsulation technique is usefully applied. SOLUTION: This microcapsule composition comprises a plurality of microcapsules, each containing one to five particles in a single liquid droplet and a shell, inductively generated by a composite coacervation, which contains the liquid droplet and one to five particles in the microcapsule.